Universe Born in Black Hole Explosion?

"University of California - Davis

Was the Universe born in a Black Hole?

The universe may have been created by an explosion within a black hole,
according to a new theory by two mathematicians recently published in the
Proceedings of the National Academy of Sciences of the U.S.A..

"It's a mathematically plausible model which refines the standard model of
the Big Bang," said Blake Temple, professor of mathematics at UC Davis and
co-author of the paper with Joel Smoller, professor of mathematics at the
University of Michigan.

In the standard model of cosmology, the universe burst into existence with
the Big Bang about 13 billion years ago. Since then, the universe, which
contains an infinite amount of matter and is infinite in extent, has been
expanding in all directions.

In the new model, the Big Bang is an actual explosion within a black hole in
an existing space. The shock wave of the explosion is expanding into an
infinite space, leaving behind it a finite amount of matter. The universe
is emerging from a white hole. The opposite of a black hole, a white hole
throws matter out instead of sucking it in.

The shockwave and the universe beyond the black hole lies in our future.
Eventually, the universe will emerge from the black hole as something like
a supernova, but on an enormously large scale, Temple said.

The equations that describe a black hole were written by Albert Einstein as
part of the General Theory of Relativity. Einstein's equations work equally
well if time runs forward or backwards. But explosive shockwaves, which
include an increase in entropy, are time-irreversible. The new theory
satisfies Einstein's equations while allowing the universe to expand.

Whether the matter emerging from the white hole came from matter that
previously fell into another black hole is an open question, Temple said.

"It is natural to wonder if there is a connection between the mass that
disappears into black hole singularities and the mass that emerges from
white hole singularities," Smoller and Temple wrote."

OK, so was the space in which that black hole existed the result of an earlier
black hole explosion in a different space? This is why, once you are past the
elephant, we keep saying "I't Turtles All The Way Down, Baby!".
Clear, Dark, Steady Skies!
(And considerate neighbors!!!)

Klaatu wrote in message om...
"University of California - Davis

In the new model, the Big Bang is an actual explosion within a black hole in
an existing space. The shock wave of the explosion is expanding into an
^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^
infinite space, leaving behind it a finite amount of matter.

This is quite a departure from standard cosmology.


Clear skies!

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Cousin Ricky wrote:
This is quite a departure from standard cosmology.

It might be that, or it might be that in an attempt to convey it to a
lay audience, it has been rendered inaccurately.

Brian Tung
The Astronomy Corner at http://astro.isi.edu/
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Brian Tung wrote:

Cousin Ricky wrote:
This is quite a departure from standard cosmology.

It might be that, or it might be that in an attempt to convey it to a
lay audience, it has been rendered inaccurately.


Yahoo Link
http://story.news.yahoo.com/news?tmp...rninablackhole

Abstract available at PNAS http://www.pnas.org/ , just search on "Shock-wave
cosmology inside a black hole" by Joel Smoller and Blake Temple. A pay for
pdf version also available.

Bill Foley wrote:

OK, so was the space in which that black hole existed the result of an
earlier
black hole explosion in a different space? This is why, once you are past
the elephant, we keep saying "I't Turtles All The Way Down, Baby!".
Clear, Dark, Steady Skies!
(And considerate neighbors!!!)

Turtles! I thought it was ducks!

In message , Bill
Foley writes
OK, so was the space in which that black hole existed the result of an earlier
black hole explosion in a different space? This is why, once you are past the
elephant, we keep saying "I't Turtles All The Way Down, Baby!".

Hard to interpret the press release, but such cosmological models do
have a following. They may even have the possibility of providing a "get
out of jail free" card for avoiding the formation of a real physical
singularity inside the event horizon of a BH.

Add to that the rather appealing idea that a new born universe inherits
the fundamental constants of its parent universe with a bit of noise and
you get a fractal tree of slightly different evolving universes. In
particular they can explore the interesting regions of the parameter
space that lead to matter, atoms, stars, chemistry, life and humans. And
only the ones that are interesting enough to form BHs ever get to
reproduce in the multiverse tree.

In essence inside every black hole is perhaps another universe (I
thought believed to be forever isolated from our own), and possibly with
mutated physical constants of nature. The key question though is whether
such speculations can make any testable predictions about the observable
properties of our universe.

Unless it can be disproved experimentally it isn't science.

Regards,
--
Martin Brown

so...

there are infinite universes?

otherwise, it is illogical to desribe
"the" universe born in a black hole.

a black hole is very much something, not nothing. if the black hole was
already there...

jc

Klaatu wrote:
In the standard model of cosmology, the universe burst into existence with
the Big Bang about 13 billion years ago. Since then, the universe, which
contains an infinite amount of matter and is infinite in extent, has been
expanding in all directions.

"infinite amount of matter"
Really?

Unless it can be disproved experimentally it isn't science.

Nor if it cannot be PROVEN experimentally.
Clear, Dark, Steady Skies!
(And considerate neighbors!!!)